Hinge.



V- 'PATENTED JUNE 1s, 1907. E'. E. EoKE.

HINGE. I vAPPJI'IIN FILED NOV. 30. 1906.

lfomey HENRY E. HOKE, OF HANOVER,- PENNSYLVANIA.

i I HINGE.

Specification of Letters Patent.

Patented June 18, 1907.

Application led November 30.1906. Serial No.1345,'795- To all whom it may concern-.-

Be it known that I, HENRY E. HOKE, a citizen of the United States, residing at Hanover, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Hinges, of which the following is a specification.

This invention has relation to hinges for hinges, the members of which are separable,

- shutter or blind can not be closed by mere pressure or leverage. 2nd. That the members of the hinge may be unlocked at will so that the door, shutter or blind may be readily closed by being merely turned on its hinges, without using undue or excessive leverage. 3rd. That the members of the hinge may be separated with ease and facility when it is desired to remove the shutter or door and as easily replaced.

In the accompanying drawing: Figure l, is a perspective view, illustrating a pair of hinges applied to a shutter, the latter being closed. Fig. 2, is a perspective view of the moving hinge member. Fig. 3, is a perspective view of the hinge members interlocked. Fig. 4, is a perspective view of the locking thimble. Fig. 5, is a perspective view of the pintle.

v The plates or leaves 1 andl 2 of the hinge are of the usual oblong rectangular shape, the stationary leaf l, being cast with the knuckles 3 and 4 forming the uppermost and lowermost parts of the hinge jointand adapted to hold the pintle 5. The movable or swinging hinge plate or leaf 2 is provided with the single knuckle 6, carried on the end of the bracket 7 extending outward from and parallel with the plate or leaf 2. The pintle 5 is `force applied tothe door or shutter.

cylindrical at its lower part 8, to receive the knuckle 6, and allow the latter to turn freely when not locked.

Above the bearing or journal portion 8 of the pintle the latter is flattened, and carries the loosely sliding thimble 9, upon the underside of which is formed a beveled tooth l0. The knuckle 6 is in' the form of a split ring, that is with a slot or kerf in its side as shown at 11. This slot or kerf admits of the knuckle being slipped on or off the pintle at any point above the cylindrical portion 8, but being narrower than the latter, does not allow the knuckle to be displaced laterally or unhinged at this point. This slot or kerf serves a double purpose.

When the shutter or door is swung outwardly, the thimble 9, does not turn, but the knuckle rotates until the top of the slot or kerf l1 is brought under the tooth 10 of the thimble 9, when the latter drops, so that the tooth falls into the kerf or slot, the abrupt shoulder of thetooth abutting against the outer wall of the slot or kerf, thus firmly interlocking the hinge members against inward movement of the member 2, and effectually preventing the closing of the door or shutter, or any inward movement beyonda plane parallel to the face of the wall, by the pressure of the wind, vibration or any other To allow the door or shutter to close, it is only necessary to lift the thimble 9, out of engagement with the knuckle 6, and this can be readily done without having to reach outward, as the door or shutter may then be moved by grasping it near its hinged or its lower edge.

The upper edge of the knuckle 6, is beveled toward one side of the kerf or slot, as shown at 12 to allow the tooth of the thimble 9 to be automatically lifted out of engagement with the knuckle 6, -so that the shutter or door may be swung completely back against the wall of the building, the rotary movement of the knuckle causing the tooth 10 to ride on the beveled edge of the knuckle up to the horizontal portion of the edge. The slot or .kerf 'may be located in any desired position,

so -that the interlocking may take place at other points than when the shutter or door is parallel to the wall ofthe building as already described. H

The second purpose of the slot or kerf in the knuckle 6 is to allow the members of the hinge to be separated, so that'the door or IOO IIO

shutter may be removed without difliculty and as easily replaced, thus overcoming a common difficulty in removing and replacing shutters or doors. It is usually necessary in removing doors and shutters to lift the movable member of each hinge vertically 0H the pintle, This is not very difficult, but in replacing the shutter or door, great diiculty occurs owing to the necessity of bringing the hinge knuckles directly over the pintle so that the upper and lower pintles may have the knuckles applied simultaneously. By providing the knuckles 6 with the kerfs or slots it is only necessary in removing the door or shutter to lift the latter-until the knuckles 6 reach the flattened portions of the pintles, and to turn the door or shutter su'fliciently to bring the kerfs or slots of the knuckles 6 in the line with the edges of the flatpart of the pintle, when the knuckles 6., may be then disconnected from the pintle by a lateral movement of the door or shutter, the pintles sliding out through the slots. In replacing the door or shutter it is only necessary to bring the slots in the knuckles 6 in line with the edges of the fiat portions of the pintles, slip the knuckles on to the pintles and let down the door or shutter.

To facilitate manipulation ofthe parts, the kerfs or slots of the knuckles 6 should be radially arranged, and should be slightly liaring or beveled.

In using two or more hinges on a shutter or door, only one, to wit, the lower hinge, should be provided with the locking thimble. Excepting as to the application or omission of the thimble the two hinges will be alike.

The pintle, it will be understood, does not turn but is rigidly attached to the hinge member 1. For securing such rigidity, the flattened part of the pintle enters a correspondingly shaped hole inthe knuckle and is upset on its end, or otherwise prevented from coming out.

The lower end of the pintle may be made square in cross section, above its head 13, to fit a square hole in the lowermost knuckle. It is obvious that the pintle mayhave its fiattened and cylindrical portions so located that it maybeinserted from above aswell as from below the hinge. To allow the hinge plates 1 and 2 to come in close contact when closed, their opposing faces are recessed as shown at l5 to receive the screw heads.

Having described my invention, I claim and desire to secure by Letters Patent:

1. A self locking hinge comprising a plate or leaf having knuckles and a rigid pintle connected to said knuckles, a plate or leaf having a knuckle pivotally mounted on said pintle, and a vertically movable non rotatable thimble mounted on said pintle, said thimble and pivotally mounted knuckle being constructed and adapted to interlock at one relative position of the hinge leaves.

2. A self locking hinge comprising pivotally connected plates or leaves with knuckles and pintle, said pintle having a iiattened and a cylindrical part and having a vertically l movable thimble mounted on the flattened part and formed with a tooth or projection on its under side and the knuckles of one of said plates being mounted on the cylindrical part of the pintle and provided with a kerf or slot, forming both a seat for the engagement `of said tooth or projection to interlock the leaves at one point, and an opening for the passage of the flattened part of the pintle, the plate or leaf carrying the slotted knuckle being vertically movable in relation to the other plate or leaf.

In testimony whereof I alix my signature, in presence of two witnesses.

HENRY E. HOKE.

Witnesses: EDWARD A. MICHAEL, C. M. WINEBRENNER. 

